As noted on GuildWars2.com, head-start access to Guild Wars 2 is now underway, allowing preorder customers to get underway in ArenaNet's MMORPG sequel. There have been some glitches in the process, and the Guild Wars 2 Twitter Feed has answers to questions from users about how to deal with various issues, and notes that the Trading Post is down at the moment, and there's currently no ETA for when it will return. Thanks John.